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skills/database-conventions/checklists/migration-checklist.md

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+# Migration Checklist
+
+**Use before applying database migrations.**
+
+## Before Migration
+
+- [ ] Backup database
+- [ ] Test migration in development
+- [ ] Test migration rollback
+- [ ] Review generated SQL
+- [ ] Check for breaking changes
+- [ ] Coordinate with team if breaking
+
+## Migration Quality
+
+- [ ] Migration is reversible (has downgrade)
+- [ ] No data loss
+- [ ] Preserves existing data
+- [ ] Handles NULL values correctly
+- [ ] Default values provided for NOT NULL
+
+## After Migration
+
+- [ ] Migration applied successfully
+- [ ] Application tested
+- [ ] Rollback tested
+- [ ] Performance verified
+- [ ] No errors in logs